Respuesta :

apologiabiology
-2x-xy=x-7
minu x from both sides
-3x-xy=-7
undistribute x
(x)(-3-y)=-7
divide both sides by (-3-y)
[tex]x= \frac{-7}{-3-y} [/tex]
[tex]x= \frac{7}{x+y} [/tex]

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